It will take time.3) Property management companies, chamber of commerce meetings, local commercial RE brokers, etc are all additional options to network and find people who do deals.

The property is in a solid area where Neighborhood Scout puts it at the highest rating for appreciation, predicting 40% appreciation over the next 3 years, and we'd look to refi or do a HELOC in 3-5 years to realize that gain, and I'd probably buy them out with my portion at that time.

If you can't or don't want to now might be a good time to unload the properties.I will say overall I think that "nobody will care more about your property than you" tends to be much more true than false. 

You should have posted a 3 day notice a few days after the first time they were late AND every time after that.

Time. 

They preach that its not about the Real Estate yet there is alot of time spent on the real estate itself.

I spent a lot of time and money to learn how to structure seller financing deals.

My parents live out of state and the purpose was to give them a place to stay for an extended period of time and we will Airbnb it when they aren’t here to pay for the property.  

This was my first time ever buying property.

Although you could officially sleep 9, most times you will not, and if so often times they will be children.